Safari Topsites changing

Perhaps this might be posted in a better section of the forum, but since I frequent this part of the forum the most, I wanted to ask this.

My Safari TopSites seem to change at random. Usually what is ultimately displayed are the last few sites I visited, when I open safari. I do know the method of setting the top sites, and never had a problem until SL and now in Lion.

I have the most current version of Safari, as well.

I have used the method of removing the TopSites.plist file, to remove a corrupt library, but that works only several times and then it returns "back to top sites changing again". I have also reset Safari before.

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